CI: enable sandbox support for Linux tests and release builds

Author: emarsden

.github/workflows/ci.yml

@@ -39,7 +39,7 @@ jobs:
       - name: Install xsltproc
         run: sudo apt install xsltproc
 
-      - run: cargo test --jobs 1 -- --show-output
+      - run: cargo test --jobs 1 --features sandbox -- --show-output
       - run: cargo doc --no-deps --all-features
 
   build-macos:

.github/workflows/release.yml

@@ -28,7 +28,7 @@ jobs:
     - name: Install protobuf compiler
       run: sudo apt-get install protobuf-compiler
 
-    - run: cargo build --release --target x86_64-unknown-linux-musl
+    - run: cargo build --release --target x86_64-unknown-linux-musl --features sandbox
 
     - name: Upload binaries to release
       uses: svenstaro/upload-release-action@v2